Electromagnetic apparatus.



Patented Sept. 3. I90I..

I. G. WATERMAN. ELECTROMAGNETIC APPARATUS.

A umion filed A r. 10, 1901.

(No Model.)

witnwom V 5 [SJ/ uanta 04,44 ma, W ?44%\ L/M M wif UNITED STATES PATENTOFFICE.

ISAAC Gr. \VATERMAN, OF SANTA BARBARA, CALIFORNIA.

ELECTROMAGNETIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 682,007, datedSeptember 3, 1901.

Application filed April 19,1901. Serial No. 56,608. (No model.)

To all whom it may concern:

Be it known that I, ISAAC G; \VATERMAN, a citizen of the United States,residing at Santa Barbara, county of Santa Barbara, State of California,have invented certain new and useful Improvements in ElectromagneticApparatus, of which the following is a specification.

This invention relates to electromagnetic apparatus, and moreparticularly to an apparatus adapted for the control of a valve toregulate the flow of water or other fluid in a pipe or conduit and assuch especially adapted for use in connection with certain improvementsrelating to the electrical control of the flow of water to basins ofwashstands or lavatory-bowls set forth in my copending application,filed February 23, 1901, Serial No. 48,425, although susceptible of usein various other connections.

The invention is designed to provide improvements in electromagneticapparatus employing a hollow core, independent coils there on, andarmature-plates for the pole-pieces of the core, which are connected byan armature-rod extending through the hollow of the core.

One object of the invention is the provision of a novel form ofelectromagnet, armature, and cooperating features, whereby the armaturewill be maintained wherever positioned by the electromagnetic action.

Another object of the invention is the provision of a novel duplex andcooperative arrangement of electromagnets and armatures,havingparticular reference to the use to which the device is to besubjected.

Having the foregoing and other not specifically-mentioned objects inView the invention consists of certain improved features of constructionand novel combinations of parts more fully set forth hereinafter andrecited in the appended claims.

In the accompanying drawings, Figure 1 is a longitudinal sectionalelevation of the magnets, showing their application to slide-valvesinterposed in a pipe system, the latter parts being in full and dottedlines; and Fig. 2, a side elevation of one pair of magnets, showing thevalve-box in section.

The letter 19 represents a pipe which can lead to any point where asupply of water is desired. In my copending application above referredto this pipe leads to a lavatory-bowl; but it is obvious that theinvention can be used-in other connections. The pipe 19 is provided withbranches 19, leading into valve-boxes g, which have the pipes q openingthereinto. One of these pipes can be run to a source of cold-watersupply and the other to a source of hot-water supply, whereby throughthe agency of my improved electrical controlling devices either hot orcold water or both can be supplied.

There are two electromagnetic devices for the separate control of thehot and cold water, and as they are duplicates and their electricalconnections and operations are identical only one set will be described.

A bracket j, suitably secured to the wall, is provided, the same havingcollars j, in which are fitted the reduced ends of upper and lowerhollow electromagnet-cores ce, connected by a collar 7t. On the magnetsare coils c, incased by shells d. Above the upper and below the lowermagnet pole-pieces are armaturepiates g, and these are connected by arod f, extending through the hollow magnet cores 6, which is ofappreciably smaller diameter than the hollow interior of the cores andextends loosely therethrough and being normally out of contacttherewith, by which is meant that said rod normally does not touch thecore, although it may do so at times, a counterbalancing-weight and cordg passing over a pulley 9, being connected to the upper armature-plateand adapted to maintain the armature-plates and parts carried therebywherever positioned by the action of the magnets. On the lower end ofthe rod f is a slide-valve 72, located in the box q and adapted to coverand uncover the port leading to pipe 5 and said valve is held orbalanced on its seat by the water-pressure assisted by a spring 0.

An electric battery of a suitable number of cells is shown at a, fromwhich the circuits can run as follows: I) to upper and lower coils c, bto circuit-closer b and b from lower coil 0 to circuit-closer 5 Abattery-wire b constitutes the return branch of the circuit from thecircuit-closers b and b.

The operation is as follows: On completing the circuit through the uppercoil 0 by clos- 5 p and p and to the point to be supplied. As

the armature-plates and rod are balanced by the counterpoise or weightthey will remain where positioned, and hence the valve will remain open.To check the flow, the circuit through the lower coil 0 can be completedby closing circuit-closer b whereupon the core will draw the lowerarmature-plate g and close the valve, and the valve will remain closedafter the electrical current has been stopped by reason of thecounterbalancing action of the weight, but can be opened again bycompleting the circuit through the upper coil.

The second set of electromagnetic apparatus and valve, of which theelectrical connections are not shown, may be conveniently employed forcontrolling the supply of hot water, its circuits and operation being inall respects the same as heretofore described, but entirely independentthereof.

' While I have illustrated my electromagnetic apparatus in connectionwith valve mechanism, this has been done to illustrate the action, and Ido not, therefore, limit myself to this specific use, as I am aware thatthe invention could be employed in a great many other connections.

Having fully described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. In an electromagnetic apparatus, the combination with a hollowelectromagnetic core disposed With its longitudinal axis insubstantially vertical position, of independent magnetic coils thereonin independent circuits and adapted for independent energization, anarmature-rod of appreciably smaller diameter than the hollow interior ofthe core and extending loosely therethrough, longitu dinally thereof andnormally out of contact with the interior walls of the core,armatureplates connected to said rod which are located adjacent therespective pole pieces of the core and at sufficient distance therefromto insure suitable play for said plates and rod so that either plate maymove in response to the magnetic attraction incident to the energizationof the coil adjacent thereto, and an independent counterbalancing deviceooacting with the armature-rod to neutralize the natural gravitationthereof, which insures the retention of the armature rod and plates inposition where drawn by the magnetic attraction.

2. In an electromagnetic apparatus, the combination with a hollowelectromagnetic core disposed with its longitudinal axis insubstantially vertical position, of independentmagnetic coils thereon inindependent circuits and adapted forindependent energization, anarmature-rod of appreciably smaller diameter than the hollow interior ofthe core and extending loosely therethrough, longitudinally thereof, andnormally out of contact with the interior walls of the core,armatureplates connected to said rod which are located adjacent therespective pole-pieces of the core and at sufiicient distance therefromto insure suitable play for said plates and rod so that either plate maymove in response to the magnetic attraction incident to the energizationof the coil adjacent thereto, a cord connected to the armature-rod, apulley over which said cord runs and a weight on the depending end ofthe cord, said cord and weight constituting a counterbalancing devicefor the armature rod and plates to neutralize the natural gravitationthereof, which insures the retention of the armature rod and plates inposition where drawn by the magnetic attraction.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

ISAAC G. WATERMAN.

Witnesses:

FRANK E. NEWTON, GEo. N. HAMLIN.

